<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>Gloze: SubProperty relationships (substitution groups)</title>

<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />



</head>
<body>
<div id="top"><!-- do not remove this div! -->


<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  
  
  <td style="padding-left: 0.5em;">
   <div id="projectname">Gloze
   &#160;<span id="projectnumber">1.01-beta2</span>
   </div>
   
  </td>
  
  
  
 </tr>
 </tbody>
</table>
</div>

<!-- Generated by Doxygen 1.7.5.1 -->
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li class="current"><a href="pages.html"><span>Related&#160;Pages</span></a></li>
      <li><a href="namespaces.html"><span>Packages</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
    </ul>
  </div>
</div>
<div class="header">
  <div class="headertitle">
<div class="title">SubProperty relationships (substitution groups) </div>  </div>
</div>
<div class="contents">
<div class="textblock"><p>There is a hierarchy among elements defined by substitution groups. These substitution groups define sub-property relationships between properties. A substitution group is defined by a head element, and member elements that substitute for the head. The property corresponding to the member is a sub-property of that corresponding to the head.</p>
<p>In the example below, the <em>head</em> element 'foo' defines the substitution group, of which element 'bar' is a member. This means that in the XML instance, 'bar' may be subsituted for 'foo'. Logically, any RDF statement of 'bar' implies a corresponding statement of 'foo'.</p>
<div class="fragment"><pre class="fragment">&lt;?xml version=<span class="stringliteral">&quot;1.0&quot;</span> encoding=<span class="stringliteral">&quot;UTF-8&quot;</span>?&gt;
&lt;xs:schema xmlns:xs=<span class="stringliteral">&quot;http://www.w3.org/2001/XMLSchema&quot;</span> 
        targetNamespace=<span class="stringliteral">&quot;http://example.org/&quot;</span> xmlns=<span class="stringliteral">&quot;http://example.org/&quot;</span> &gt;
        
        &lt;xs:element name=<span class="stringliteral">&quot;foo&quot;</span> type=<span class="stringliteral">&quot;xs:string&quot;</span> /&gt;      
        &lt;xs:element name=<span class="stringliteral">&quot;bar&quot;</span> substitutionGroup=<span class="stringliteral">&quot;foo&quot;</span> type=<span class="stringliteral">&quot;xs:string&quot;</span> /&gt;

&lt;/xs:schema&gt;
</pre></div> <div class="fragment"><pre class="fragment">@prefix ns2:     &lt;http:<span class="comment">//example.org/def/&gt; .</span>
@prefix rdfs:    &lt;http:<span class="comment">//www.w3.org/2000/01/rdf-schema#&gt; .</span>
@prefix ns1:     &lt;http:<span class="comment">//example.org/&gt; .</span>
@prefix xs_:     &lt;http:<span class="comment">//www.w3.org/2001/XMLSchema#&gt; .</span>
@prefix owl:     &lt;http:<span class="comment">//www.w3.org/2002/07/owl#&gt; .</span>
@prefix xsd:     &lt;http:<span class="comment">//www.w3.org/2001/XMLSchema#&gt; .</span>
@prefix rdf:     &lt;http:<span class="comment">//www.w3.org/1999/02/22-rdf-syntax-ns#&gt; .</span>
@prefix xs:      &lt;http:<span class="comment">//www.w3.org/2001/XMLSchema&gt; .</span>

ns1:bar
      a       rdf:Property , owl:DatatypeProperty ;
      rdfs:range xsd:string ;
      rdfs:subPropertyOf ns1:foo .

ns1:foo
      a       rdf:Property , owl:DatatypeProperty ;
      rdfs:range xsd:<span class="keywordtype">string</span> .

&lt;http:<span class="comment">//example.org/substitution1.owl&gt;</span>
      a       owl:Ontology .
</pre></div> </div></div>


<hr class="footer"/><address class="footer"><small>
Generated on Tue Nov 15 2011 22:13:50 for Gloze by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.7.5.1
</small></address>

</body>
</html>
